>> work on your impulse control. >> because charlie sheen does that so famously. sheen also told patrick he's not in alcoholics anonymous nor does he believe in it. addiction specialists say sheen is not taking his own problems seriously. he's at home on hiatus from his tv show after several wild benders. >>> we'll be right back with the facebook factor after this. >>> is there such a thing as friend overload? there's new research that suggests having a lot of facebook friends could stress you out. hundreds of students were examined on their use of the social networking site. the neg fish effects could outway the positive benefits of staying in touch with friends and family. some of the respondents reported they felt anxious when they used the site. others said they felt guilty and uncomfortable after they rejected friend requests. and those with more friends are the most likely to be stressed because they've invested the most time in the site. other stresses include envy of other's lifestyles. that's why i have only two friends. >> just with facebook? >> in gener